c# - COM RCW reference count in an AppDomain -

-

i have outlook addin i'm loading separate appdomains into. i'm passing outlook (com rcw) objects these appdomains. basics of work fine, reference counts seem come unstuck when fetch object reference within appdomain.

for straight-forward example, i've got button on mail.compose ribbon, click handler. code executing within primary outlook add-in appdomain.

var execasm = system.reflection.assembly.getexecutingassembly(); var loaduri = new uri(execasm.codebase); string loaddir = system.io.path.getdirectoryname(loaduri.localpath);  // create app-domain appdomainsetup appsetup = new appdomainsetup(); appsetup.applicationbase = loaddir; system.security.permissionset permset =     new system.security.permissionset(    system.security.permissions.permissionstate.unrestricted); var mydomain = appdomain.createdomain("mydomain", null, appsetup, permset, null);  // instance app-domain dynamic addinpoint = mydomain.createinstanceandunwrap(     assemblyname: "classlibrary1",     typename: "classlibrary1.class1");  // work on mail item outlook.mailitem currentmail =      outlook.mailitem)globals.thisaddin.application.activeinspector()     .currentitem; addinpoint.dowork(currentmail);  // clean-up marshal.releasecomobject(currentmail); currentmail = null;

and class implementation below. clear, ever executed within separate appdomain.

public void dowork(outlook.mailitem mail) {     mail.save();     mail.to = "foobar@test.com";      var propaccessor = mail.propertyaccessor;     marshal.releasecomobject(propaccessor);     propaccessor = null; }

the usage scenario straight forward:

  1. click "new email".
  2. click add-in button in ribbon.
  3. close email - choose "no" on unsaved changes prompt.
  4. close outlook - receive 2 more "unsaved changes" prompts same item, indicative of un-released reference mail item.

the issue appears lie in call mail.propertyaccessor, , subsequent releasecomobject. should releasing reference, , refcount returned releasecomobject is zero, there's still reference, removing lines dowork method results in no "unsaved changes" prompt @ step 4. it's worth, moving more brute-force marshal.finalreleasecomobject method makes no difference.

there's nothing intrinsically wrong mail.propertyaccessor code. move out of dowork method , ribbon button click event handler, , 1 expect, there no unsaved changes prompts @ step 4.

what's going on here?

edit 1

it seems make difference what property accessed within separate appdomain. propertyaccessor causes problems, recipients not. session, application , attachments ok. in fact far, mailitem property i've found trouble propertyaccessor.


Comments

Post a Comment

Popular posts from this blog

java - activate/deactivate sonar maven plugin by profile? -

-
i use sonar plugin executes if activated in maven profile. sonar runs on every compile. the problem build fail other team members not have sonar application installed locally. pom.xml checked in team members same copy including sonar configuration, don't want them modify purpose of disabling sonar (they might inadvertently check modified copy in). please advise how configure maven (.m2/settings.xml) and/or pom.xml sonar feature can enabled/disabled local profile. here sonar configuration in each project's pom.xml: <plugin> <groupid>org.codehaus.mojo</groupid> <artifactid>sonar-maven-plugin</artifactid> <version>1.0</version> <executions> <execution> <id>make-sonar</id> <phase>compile</phase> <goals> <goal>sonar</goal> </goals> </execution> </executions> ...
Read more

python - TypeError: can only concatenate tuple (not "float") to tuple -

-
i'm new python, question might easy, anyway, patience: as trying call newton-raphson method calculate implied volatility in black-scholes formula call/put option pricing, first thing is, newton method in scipy.optimize seems calculate function's zeros, in black-scholes formula, want function's value option price, not zero. (i'm new here programming, i'm not sure techniques.) should write function things like: def f(sigma, price): return bsformula(s0,k,r,t,q,sigma) - price then, while calling newton method, takes args=() 1 parameter in function, write this: value = newton(bsprice2, 0.5, args=price) but error message: file "bs.py", line 36, in bsimpvol value = newton(bsprice2, 0.5, args=float(price)) file "/usr/lib/python2.7/dist-packages/scipy/optimize/zeros.py", line 143, in newton q0 = func(*((p0,) + args)) typeerror: can concatenate tuple (not "float") tuple could tell me why that? how fix it? apprecia...
Read more

java - What is the difference between String. and String.this. ? -

-
this question has answer here: meaning of .this , .class in java 2 answers i'll straight point. im still learning bit of syntax , want know difference between code is code a: public class buttonz extends jbutton{ public buttonz(){ settext(new string(string.valueof(i))); } } please ignore fact i undeclared, not lost. code b: public class buttonz extends jbutton{ public buttonz(){ settext(new string(string.this.charat(i))); } } what don't yet understand difference in typing string.this , string. i under assumption when use dot operator on class accessing it's static methods(and/or variables if they're not hidden). i have studied little bit , have concluded when using string. accessing string static methods.. when using string.this. i'm accessing methods class buttonz extendi...
Read more